西安工程大学学报2017，Vol.31Issue(1)：119-122,130,5.DOI:10.13338/j.issn.1674-649x.2017.01.021
强光下多像素光子计数器超动态范围的实验证明与机理分析
Experiment and mechanism analysis for the over saturation phenomenon of MPPC by high intensity pulsed light illumination
摘要
Abstract
Theoretically,the dynamic range of a Multi-Pixel Photon Counter(MPPC)is considered to be limited by the total number of pixels of MPPC.Thus the maximum detectable photoelectron number is equal to the total pixel number of MPPC.More avalanches could be triggered in a single pixel only if the width of the pulsed incident light is larger than that of the output avalanche pulse of MPPC.In this paper,the dynamic range characteristic of MPPC is analyzed with pico-second short laser pulses.The results show that when the intensity of the incident light is large,the amplitude of the output signal of MPPC is several times larger than that of the total number of pixels,even if the width of the incident light pulse is far smaller than that of the output avalanche pulse of MPPC.The non-high electrical field region in the MPPC also has its own gain but smaller than the gain in the high electrical field region.The gain in the non-high electrical field region is about 250,while the gain in the high electrical field region is about 105.The non-high electrical field region should be working in the linear mode avalanche photodiode (APD).关键词
多像素光子计数器/MPPC硅光电倍增器/超动态范围/光子数分辨/单光子响应Key words
multi-pixel photon counter/MPPC silicon photomultiplier/over dynamic range/photon-number-resolving/single photon response分类
数理科学引用本文复制引用
高秀秀,张国青,刘丽娜,朱长军..强光下多像素光子计数器超动态范围的实验证明与机理分析[J].西安工程大学学报,2017,31(1):119-122,130,5.基金项目
国家自然科学基金资助项目(11405119) （11405119）
陕西省自然科学基金资助项目(2014JQ8364) （2014JQ8364）
陕西省教育厅自然科学基金资助项目(14JK1290) （14JK1290）
